2 * Filesystem utility routines
6 * Wireshark - Network traffic analyzer
7 * By Gerald Combs <gerald@wireshark.org>
8 * Copyright 1998 Gerald Combs
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
30 * Required with GNU libc to get dladdr().
31 * We define it here because <dlfcn.h> apparently gets included by
32 * one of the headers we include below.
56 #ifdef HAVE_SYS_STAT_H
64 #include <wsutil/unicode-utils.h>
66 #ifdef DLADDR_FINDS_EXECUTABLE_PATH
68 #endif /* DLADDR_FINDS_EXECUTABLE_PATH */
72 #include "filesystem.h"
73 #include "report_err.h"
74 #include <wsutil/privileges.h>
75 #include <wsutil/file_util.h>
77 #include <wiretap/wtap.h> /* for WTAP_ERR_SHORT_WRITE */
79 #define PROFILES_DIR "profiles"
80 #define PLUGINS_DIR_NAME "plugins"
82 #define U3_MY_CAPTURES "\\My Captures"
84 char *persconffile_dir = NULL;
85 char *persdatafile_dir = NULL;
86 char *persconfprofile = NULL;
88 static gboolean do_store_persconffiles = FALSE;
89 static GHashTable *profile_files = NULL;
92 * Given a pathname, return a pointer to the last pathname separator
93 * character in the pathname, or NULL if the pathname contains no
97 find_last_pathname_separator(const char *path)
105 * We have to scan for '\' or '/'.
106 * Get to the end of the string.
108 separator = strchr(path, '\0'); /* points to ending '\0' */
109 while (separator > path) {
111 if (c == '\\' || c == '/')
112 return separator; /* found it */
116 * OK, we didn't find any, so no directories - but there might
117 * be a drive letter....
119 return strchr(path, ':');
121 separator = strrchr(path, '/');
127 * Given a pathname, return the last component.
130 get_basename(const char *path)
132 const char *filename;
134 g_assert(path != NULL);
135 filename = find_last_pathname_separator(path);
136 if (filename == NULL) {
138 * There're no directories, drive letters, etc. in the
139 * name; the pathname *is* the file name.
144 * Skip past the pathname or drive letter separator.
152 * Given a pathname, return a string containing everything but the
153 * last component. NOTE: this overwrites the pathname handed into
157 get_dirname(char *path)
161 g_assert(path != NULL);
162 separator = find_last_pathname_separator(path);
163 if (separator == NULL) {
165 * There're no directories, drive letters, etc. in the
166 * name; there is no directory path to return.
172 * Get rid of the last pathname separator and the final file
178 * "path" now contains the pathname of the directory containing
179 * the file/directory to which it referred.
185 * Given a pathname, return:
187 * the errno, if an attempt to "stat()" the file fails;
189 * EISDIR, if the attempt succeeded and the file turned out
192 * 0, if the attempt succeeded and the file turned out not
197 * Visual C++ on Win32 systems doesn't define these. (Old UNIX systems don't
198 * define them either.)
200 * Visual C++ on Win32 systems doesn't define S_IFIFO, it defines _S_IFIFO.
203 #define S_ISREG(mode) (((mode) & S_IFMT) == S_IFREG)
206 #define S_IFIFO _S_IFIFO
209 #define S_ISFIFO(mode) (((mode) & S_IFMT) == S_IFIFO)
212 #define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
216 test_for_directory(const char *path)
220 if (ws_stat(path, &statb) < 0)
223 if (S_ISDIR(statb.st_mode))
230 test_for_fifo(const char *path)
234 if (ws_stat(path, &statb) < 0)
237 if (S_ISFIFO(statb.st_mode))
244 * Directory from which the executable came.
246 static char *progfile_dir;
249 * TRUE if we're running from the build directory and we aren't running
250 * with special privileges.
252 static gboolean running_in_build_directory_flag = FALSE;
255 * Get the pathname of the directory from which the executable came,
256 * and save it for future use. Returns NULL on success, and a
257 * g_mallocated string containing an error on failure.
260 init_progfile_dir(const char *arg0
264 , int (*main_addr)(int, char **)
265 #if defined(_WIN32) || !defined(DLADDR_FINDS_EXECUTABLE_PATH)
271 TCHAR prog_pathname_w[_MAX_PATH+2];
279 * Attempt to get the full pathname of the currently running
282 if (GetModuleFileName(NULL, prog_pathname_w, G_N_ELEMENTS(prog_pathname_w)) != 0 && GetLastError() != ERROR_INSUFFICIENT_BUFFER) {
284 * XXX - Should we use g_utf16_to_utf8(), as in
287 prog_pathname = utf_16to8(prog_pathname_w);
289 * We got it; strip off the last component, which would be
290 * the file name of the executable, giving us the pathname
291 * of the directory where the executable resides.
293 progfile_dir = g_path_get_dirname(prog_pathname);
294 if (progfile_dir != NULL) {
295 return NULL; /* we succeeded */
298 * OK, no. What do we do now?
300 return g_strdup_printf("No \\ in executable pathname \"%s\"",
305 * Oh, well. Return an indication of the error.
307 error = GetLastError();
308 if (FormatMessage(FORMAT_MESSAGE_ALLOCATE_BUFFER|FORMAT_MESSAGE_FROM_SYSTEM,
309 NULL, error, 0, (LPTSTR) &msg_w, 0, NULL) == 0) {
311 * Gak. We can't format the message.
313 return g_strdup_printf("GetModuleFileName failed: %u (FormatMessage failed: %u)",
314 error, GetLastError());
316 msg = utf_16to8(msg_w);
319 * "FormatMessage()" "helpfully" sticks CR/LF at the
320 * end of the message. Get rid of it.
322 msglen = strlen(msg);
324 msg[msglen - 1] = '\0';
325 msg[msglen - 2] = '\0';
327 return g_strdup_printf("GetModuleFileName failed: %s (%u)",
331 #ifdef DLADDR_FINDS_EXECUTABLE_PATH
338 char *path_start, *path_end;
339 size_t path_component_len;
345 * Check whether WIRESHARK_RUN_FROM_BUILD_DIRECTORY is set in the
346 * environment; if so, set running_in_build_directory_flag if we
347 * weren't started with special privileges. (If we were started
348 * with special privileges, it's not safe to allow the user to point
349 * us to some other directory; running_in_build_directory_flag, when
350 * set, causes us to look for plugins and the like in the build
353 if (getenv("WIRESHARK_RUN_FROM_BUILD_DIRECTORY") != NULL
354 && !started_with_special_privs())
355 running_in_build_directory_flag = TRUE;
357 #ifdef DLADDR_FINDS_EXECUTABLE_PATH
359 * Try to use dladdr() to find the pathname of the executable.
360 * dladdr() is not guaranteed to give you anything better than
361 * argv[0] (i.e., it might not contain a / at all, much less
362 * being an absolute path), and doesn't appear to do so on
363 * Linux, but on other platforms it could give you an absolute
364 * path and obviate the need for us to determine the absolute
367 if (dladdr((void *)main_addr, &info))
368 arg0 = info.dli_fname;
371 * Try to figure out the directory in which the currently running
372 * program resides, given something purporting to be the executable
373 * name (from dladdr() or from the argv[0] it was started with.
374 * That might be the absolute path of the program, or a path relative
375 * to the current directory of the process that started it, or
376 * just a name for the program if it was started from the command
377 * line and was searched for in $PATH. It's not guaranteed to be
378 * any of those, however, so there are no guarantees....
380 if (arg0[0] == '/') {
382 * It's an absolute path.
384 prog_pathname = g_strdup(arg0);
385 } else if (strchr(arg0, '/') != NULL) {
387 * It's a relative path, with a directory in it.
388 * Get the current directory, and combine it
389 * with that directory.
391 path_max = pathconf(".", _PC_PATH_MAX);
392 if (path_max == -1) {
394 * We have no idea how big a buffer to
395 * allocate for the current directory.
397 return g_strdup_printf("pathconf failed: %s\n",
400 curdir = (char *)g_malloc(path_max);
401 if (getcwd(curdir, path_max) == NULL) {
403 * It failed - give up, and just stick
407 return g_strdup_printf("getcwd failed: %s\n",
410 path = g_strdup_printf("%s/%s", curdir, arg0);
412 prog_pathname = path;
415 * It's just a file name.
416 * Search the path for a file with that name
419 prog_pathname = NULL; /* haven't found it yet */
420 pathstr = getenv("PATH");
421 path_start = pathstr;
422 if (path_start != NULL) {
423 while (*path_start != '\0') {
424 path_end = strchr(path_start, ':');
425 if (path_end == NULL)
426 path_end = path_start + strlen(path_start);
427 path_component_len = path_end - path_start;
428 path = (char *)g_malloc(path_component_len + 1
430 memcpy(path, path_start, path_component_len);
431 path[path_component_len] = '\0';
432 strncat(path, "/", 2);
433 strncat(path, arg0, strlen(arg0) + 1);
434 if (access(path, X_OK) == 0) {
438 prog_pathname = path;
443 * That's not it. If there are more
444 * path components to test, try them.
446 if (*path_end == '\0') {
448 * There's nothing more to try.
452 if (*path_end == ':')
454 path_start = path_end;
457 if (prog_pathname == NULL) {
459 * Program not found in path.
461 return g_strdup_printf("\"%s\" not found in \"%s\"",
467 * XXX - should we pick a default?
469 return g_strdup("PATH isn't set");
474 * OK, we have what we think is the pathname
477 * First, find the last "/" in the directory,
478 * as that marks the end of the directory pathname.
480 dir_end = strrchr(prog_pathname, '/');
481 if (dir_end != NULL) {
483 * Found it. Strip off the last component,
484 * as that's the path of the program.
489 * Is there a "/.libs" at the end?
491 dir_end = strrchr(prog_pathname, '/');
492 if (dir_end != NULL) {
493 if (strcmp(dir_end, "/.libs") == 0) {
496 * Strip that off; it's an
497 * artifact of libtool.
502 * This presumably means we're run from
503 * the libtool wrapper, which probably
504 * means we're being run from the build
505 * directory. If we weren't started
506 * with special privileges, set
507 * running_in_build_directory_flag.
509 * XXX - should we check whether what
510 * follows ".libs/" begins with "lt-"?
512 if (!started_with_special_privs())
513 running_in_build_directory_flag = TRUE;
518 * OK, we have the path we want.
520 progfile_dir = prog_pathname;
524 * This "shouldn't happen"; we apparently
525 * have no "/" in the pathname.
526 * Just free up prog_pathname.
528 retstr = g_strdup_printf("No / found in \"%s\"", prog_pathname);
529 g_free(prog_pathname);
536 * Get the directory in which the program resides.
539 get_progfile_dir(void)
545 * Get the directory in which the global configuration and data files are
548 * On Windows, we use the directory in which the executable for this
551 * On UN*X, we use the DATAFILE_DIR value supplied by the configure
552 * script, unless we think we're being run from the build directory,
553 * in which case we use the directory in which the executable for this
556 * XXX - if we ever make libwireshark a real library, used by multiple
557 * applications (more than just TShark and versions of Wireshark with
558 * various UIs), should the configuration files belong to the library
559 * (and be shared by all those applications) or to the applications?
561 * If they belong to the library, that could be done on UNIX by the
562 * configure script, but it's trickier on Windows, as you can't just
563 * use the pathname of the executable.
565 * If they belong to the application, that could be done on Windows
566 * by using the pathname of the executable, but we'd have to have it
567 * passed in as an argument, in some call, on UNIX.
569 * Note that some of those configuration files might be used by code in
570 * libwireshark, some of them might be used by dissectors (would they
571 * belong to libwireshark, the application, or a separate library?),
572 * and some of them might be used by other code (the Wireshark preferences
573 * file includes resolver preferences that control the behavior of code
574 * in libwireshark, dissector preferences, and UI preferences, for
578 get_datafile_dir(void)
581 char *u3deviceexecpath;
583 static const char *datafile_dir = NULL;
585 if (datafile_dir != NULL)
590 * See if we are running in a U3 environment.
592 u3deviceexecpath = getenv_utf8("U3_DEVICE_EXEC_PATH");
594 if (u3deviceexecpath != NULL) {
596 * We are; use the U3 device executable path.
598 datafile_dir = u3deviceexecpath;
601 * Do we have the pathname of the program? If so, assume we're
602 * running an installed version of the program. If we fail,
603 * we don't change "datafile_dir", and thus end up using the
606 * XXX - does NSIS put the installation directory into
607 * "\HKEY_LOCAL_MACHINE\SOFTWARE\Wireshark\InstallDir"?
608 * If so, perhaps we should read that from the registry,
611 if (progfile_dir != NULL) {
613 * Yes, we do; use that.
615 datafile_dir = progfile_dir;
619 * Fall back on the default installation directory.
621 datafile_dir = "C:\\Program Files\\Wireshark\\";
625 if (running_in_build_directory_flag && progfile_dir != NULL) {
627 * We're (probably) being run from the build directory and
628 * weren't started with special privileges, and we were
629 * able to determine the directory in which the program
630 * was found, so use that.
632 datafile_dir = progfile_dir;
635 * Return the directory specified when the build was
636 * configured, prepending the run path prefix if it exists.
638 if (getenv("WIRESHARK_DATA_DIR") && !started_with_special_privs()) {
640 * The user specified a different directory for data files
641 * and we aren't running with special privileges.
642 * XXX - We might be able to dispense with the priv check
644 datafile_dir = g_strdup(getenv("WIRESHARK_DATA_DIR"));
646 datafile_dir = DATAFILE_DIR;
656 * Find the directory where the python dissectors are stored.
658 * On Windows, we use the "py_dissector" subdirectory of the datafile directory.
660 * On UN*X, we use the PYTHON_DIR value supplied by the configure
661 * script, unless we think we're being run from the build directory,
662 * in which case we use the "py_dissector" subdirectory of the datafile directory.
664 * In both cases, we then use the subdirectory of that directory whose
665 * name is the version number.
667 * XXX - if we think we're being run from the build directory, perhaps we
668 * should have the plugin code not look in the version subdirectory
669 * of the plugin directory, but look in all of the subdirectories
670 * of the plugin directory, so it can just fetch the plugins built
671 * as part of the build process.
673 static const char *wspython_dir = NULL;
676 init_wspython_dir(void)
680 * On Windows, the data file directory is the installation
681 * directory; the python dissectors are stored under it.
683 * Assume we're running the installed version of Wireshark;
684 * on Windows, the data file directory is the directory
685 * in which the Wireshark binary resides.
687 wspython_dir = g_strdup_printf("%s\\python\\%s", get_datafile_dir(),
691 * Make sure that pathname refers to a directory.
693 if (test_for_directory(wspython_dir) != EISDIR) {
695 * Either it doesn't refer to a directory or it
696 * refers to something that doesn't exist.
698 * Assume that means we're running a version of
699 * Wireshark we've built in a build directory,
700 * in which case {datafile dir}\python is the
701 * top-level plugins source directory, and use
702 * that directory and set the "we're running in
703 * a build directory" flag, so the plugin
704 * scanner will check all subdirectories of that
705 * directory for python dissectors.
707 g_free( (gpointer) wspython_dir);
708 wspython_dir = g_strdup_printf("%s\\python", get_datafile_dir());
709 running_in_build_directory_flag = TRUE;
712 if (running_in_build_directory_flag) {
714 * We're (probably) being run from the build directory and
715 * weren't started with special privileges, so we'll use
716 * the "python" subdirectory of the datafile directory
717 * (the datafile directory is the build directory).
719 wspython_dir = g_strdup_printf("%s/epan/wspython/", get_datafile_dir());
721 if (getenv("WIRESHARK_PYTHON_DIR") && !started_with_special_privs()) {
723 * The user specified a different directory for plugins
724 * and we aren't running with special privileges.
726 wspython_dir = g_strdup(getenv("WIRESHARK_PYTHON_DIR"));
728 wspython_dir = PYTHON_DIR;
733 #endif /* HAVE_PYTHON */
736 * Get the directory in which the python dissectors are stored.
739 get_wspython_dir(void)
742 if (!wspython_dir) init_wspython_dir();
750 #if defined(HAVE_PLUGINS) || defined(HAVE_LUA_5_1)
752 * Find the directory where the plugins are stored.
754 * On Windows, we use the "plugin" subdirectory of the datafile directory.
756 * On UN*X, we use the PLUGIN_DIR value supplied by the configure
757 * script, unless we think we're being run from the build directory,
758 * in which case we use the "plugin" subdirectory of the datafile directory.
760 * In both cases, we then use the subdirectory of that directory whose
761 * name is the version number.
763 * XXX - if we think we're being run from the build directory, perhaps we
764 * should have the plugin code not look in the version subdirectory
765 * of the plugin directory, but look in all of the subdirectories
766 * of the plugin directory, so it can just fetch the plugins built
767 * as part of the build process.
769 static const char *plugin_dir = NULL;
772 init_plugin_dir(void)
776 * On Windows, the data file directory is the installation
777 * directory; the plugins are stored under it.
779 * Assume we're running the installed version of Wireshark;
780 * on Windows, the data file directory is the directory
781 * in which the Wireshark binary resides.
783 plugin_dir = g_strdup_printf("%s\\plugins\\%s", get_datafile_dir(),
787 * Make sure that pathname refers to a directory.
789 if (test_for_directory(plugin_dir) != EISDIR) {
791 * Either it doesn't refer to a directory or it
792 * refers to something that doesn't exist.
794 * Assume that means we're running a version of
795 * Wireshark we've built in a build directory,
796 * in which case {datafile dir}\plugins is the
797 * top-level plugins source directory, and use
798 * that directory and set the "we're running in
799 * a build directory" flag, so the plugin
800 * scanner will check all subdirectories of that
801 * directory for plugins.
803 g_free( (gpointer) plugin_dir);
804 plugin_dir = g_strdup_printf("%s\\plugins", get_datafile_dir());
805 running_in_build_directory_flag = TRUE;
808 if (running_in_build_directory_flag) {
810 * We're (probably) being run from the build directory and
811 * weren't started with special privileges, so we'll use
812 * the "plugins" subdirectory of the datafile directory
813 * (the datafile directory is the build directory).
815 plugin_dir = g_strdup_printf("%s/plugins", get_datafile_dir());
817 if (getenv("WIRESHARK_PLUGIN_DIR") && !started_with_special_privs()) {
819 * The user specified a different directory for plugins
820 * and we aren't running with special privileges.
822 plugin_dir = g_strdup(getenv("WIRESHARK_PLUGIN_DIR"));
824 plugin_dir = PLUGIN_DIR;
829 #endif /* HAVE_PLUGINS || HAVE_LUA_5_1 */
832 * Get the directory in which the plugins are stored.
837 #if defined(HAVE_PLUGINS) || defined(HAVE_LUA_5_1)
838 if (!plugin_dir) init_plugin_dir();
846 * Get the flag indicating whether we're running from a build
850 running_in_build_directory(void)
852 return running_in_build_directory_flag;
856 * Get the directory in which files that, at least on UNIX, are
857 * system files (such as "/etc/ethers") are stored; on Windows,
858 * there's no "/etc" directory, so we get them from the global
859 * configuration and data file directory.
862 get_systemfile_dir(void)
865 return get_datafile_dir();
872 * Name of directory, under the user's home directory, in which
873 * personal configuration files are stored.
876 #define PF_DIR "Wireshark"
879 * XXX - should this be ".libepan"? For backwards-compatibility, I'll keep
880 * it ".wireshark" for now.
882 #define PF_DIR ".wireshark"
886 /* utf8 version of getenv, needed to get win32 filename paths */
887 char *getenv_utf8(const char *varname)
893 envvar = getenv(varname);
895 /* since GLib 2.6 we need an utf8 version of the filename */
896 #if GLIB_CHECK_VERSION(2,6,0)
897 /* using the wide char version of getenv should work under all circumstances */
899 /* convert given varname to utf16, needed by _wgetenv */
900 varnamew = g_utf8_to_utf16(varname, -1, NULL, NULL, NULL);
901 if (varnamew == NULL) {
905 /* use wide char version of getenv */
906 envvarw = _wgetenv(varnamew);
908 if (envvarw == NULL) {
912 /* convert value to utf8 */
913 envvar = g_utf16_to_utf8(envvarw, -1, NULL, NULL, NULL);
922 set_profile_name(const gchar *profilename)
924 g_free (persconfprofile);
926 if (profilename && strlen(profilename) > 0 &&
927 strcmp(profilename, DEFAULT_PROFILE) != 0) {
928 persconfprofile = g_strdup (profilename);
930 /* Default Profile */
931 persconfprofile = NULL;
936 get_profile_name(void)
938 if (persconfprofile) {
939 return persconfprofile;
941 return DEFAULT_PROFILE;
946 is_default_profile(void)
948 return (!persconfprofile || strcmp(persconfprofile, DEFAULT_PROFILE) == 0) ? TRUE : FALSE;
952 profile_store_persconffiles(gboolean store)
955 profile_files = g_hash_table_new (g_str_hash, g_str_equal);
957 do_store_persconffiles = store;
961 * Get the directory in which personal configuration files reside;
962 * in UNIX-compatible systems, it's ".wireshark", under the user's home
963 * directory, and on Windows systems, it's "Wireshark", under %APPDATA%
964 * or, if %APPDATA% isn't set, it's "%USERPROFILE%\Application Data"
965 * (which is what %APPDATA% normally is on Windows 2000).
968 get_persconffile_dir_no_profile(void)
972 char *userprofiledir;
979 /* Return the cached value, if available */
980 if (persconffile_dir != NULL)
981 return persconffile_dir;
985 * See if we are running in a U3 environment.
987 u3appdatapath = getenv_utf8("U3_APP_DATA_PATH");
988 if (u3appdatapath != NULL) {
990 * We are; use the U3 application data path.
992 persconffile_dir = u3appdatapath;
995 * Use %APPDATA% or %USERPROFILE%, so that configuration
996 * files are stored in the user profile, rather than in
997 * the home directory. The Windows convention is to store
998 * configuration information in the user profile, and doing
999 * so means you can use Wireshark even if the home directory
1000 * is an inaccessible network drive.
1002 appdatadir = getenv_utf8("APPDATA");
1003 if (appdatadir != NULL) {
1005 * Concatenate %APPDATA% with "\Wireshark".
1007 persconffile_dir = g_strdup_printf("%s" G_DIR_SEPARATOR_S "%s",
1008 appdatadir, PF_DIR);
1011 * OK, %APPDATA% wasn't set, so use
1012 * %USERPROFILE%\Application Data.
1014 userprofiledir = getenv_utf8("USERPROFILE");
1015 if (userprofiledir != NULL) {
1016 persconffile_dir = g_strdup_printf(
1017 "%s" G_DIR_SEPARATOR_S "Application Data" G_DIR_SEPARATOR_S "%s",
1018 userprofiledir, PF_DIR);
1021 * Give up and use "C:".
1023 persconffile_dir = g_strdup_printf("C:" G_DIR_SEPARATOR_S "%s", PF_DIR);
1029 * If $HOME is set, use that.
1031 homedir = getenv("HOME");
1032 if (homedir == NULL) {
1034 * Get their home directory from the password file.
1035 * If we can't even find a password file entry for them,
1038 pwd = getpwuid(getuid());
1041 * This is cached, so we don't need to worry
1042 * about allocating multiple ones of them.
1044 homedir = g_strdup(pwd->pw_dir);
1048 persconffile_dir = g_strdup_printf("%s" G_DIR_SEPARATOR_S "%s", homedir, PF_DIR);
1051 return persconffile_dir;
1055 get_profiles_dir(void)
1057 static char *profiles_dir = NULL;
1059 g_free (profiles_dir);
1060 profiles_dir = g_strdup_printf ("%s%s%s", get_persconffile_dir_no_profile (),
1061 G_DIR_SEPARATOR_S, PROFILES_DIR);
1063 return profiles_dir;
1067 get_persconffile_dir(const gchar *profilename)
1069 static char *persconffile_profile_dir = NULL;
1071 g_free (persconffile_profile_dir);
1073 if (profilename && strlen(profilename) > 0 &&
1074 strcmp(profilename, DEFAULT_PROFILE) != 0) {
1075 persconffile_profile_dir = g_strdup_printf ("%s%s%s", get_profiles_dir (),
1076 G_DIR_SEPARATOR_S, profilename);
1078 persconffile_profile_dir = g_strdup (get_persconffile_dir_no_profile ());
1081 return persconffile_profile_dir;
1085 profile_exists(const gchar *profilename)
1087 if (test_for_directory (get_persconffile_dir (profilename)) == EISDIR) {
1095 delete_directory (const char *directory, char **pf_dir_path_return)
1102 if ((dir = ws_dir_open(directory, 0, NULL)) != NULL) {
1103 while ((file = ws_dir_read_name(dir)) != NULL) {
1104 filename = g_strdup_printf ("%s%s%s", directory, G_DIR_SEPARATOR_S,
1105 ws_dir_get_name(file));
1106 if (test_for_directory(filename) != EISDIR) {
1107 ret = ws_remove(filename);
1110 /* The user has manually created a directory in the profile directory */
1111 /* I do not want to delete the directory recursively yet */
1112 ret = delete_directory (filename, pf_dir_path_return);
1116 *pf_dir_path_return = filename;
1124 if (ret == 0 && (ret = ws_remove(directory)) != 0) {
1125 *pf_dir_path_return = g_strdup (directory);
1132 delete_persconffile_profile(const char *profilename, char **pf_dir_path_return)
1134 const char *profile_dir = get_persconffile_dir(profilename);
1137 if (test_for_directory (profile_dir) == EISDIR) {
1138 ret = delete_directory (profile_dir, pf_dir_path_return);
1145 rename_persconffile_profile(const char *fromname, const char *toname,
1146 char **pf_from_dir_path_return, char **pf_to_dir_path_return)
1148 char *from_dir = g_strdup (get_persconffile_dir(fromname));
1149 char *to_dir = g_strdup (get_persconffile_dir(toname));
1152 ret = ws_rename (from_dir, to_dir);
1154 *pf_from_dir_path_return = g_strdup (from_dir);
1155 *pf_to_dir_path_return = g_strdup (to_dir);
1165 * Create the directory that holds personal configuration files, if
1166 * necessary. If we attempted to create it, and failed, return -1 and
1167 * set "*pf_dir_path_return" to the pathname of the directory we failed
1168 * to create (it's g_mallocated, so our caller should free it); otherwise,
1172 create_persconffile_profile(const char *profilename, char **pf_dir_path_return)
1174 const char *pf_dir_path;
1176 char *pf_dir_path_copy, *pf_dir_parent_path;
1177 size_t pf_dir_parent_path_len;
1184 * Check if profiles directory exists.
1185 * If not then create it.
1187 pf_dir_path = get_profiles_dir ();
1188 if (ws_stat(pf_dir_path, &s_buf) != 0 && errno == ENOENT) {
1189 ret = ws_mkdir(pf_dir_path, 0755);
1191 *pf_dir_path_return = g_strdup(pf_dir_path);
1197 pf_dir_path = get_persconffile_dir(profilename);
1198 if (ws_stat(pf_dir_path, &s_buf) != 0 && errno == ENOENT) {
1201 * Does the parent directory of that directory
1202 * exist? %APPDATA% may not exist even though
1203 * %USERPROFILE% does.
1205 * We check for the existence of the directory
1206 * by first checking whether the parent directory
1207 * is just a drive letter and, if it's not, by
1208 * doing a "stat()" on it. If it's a drive letter,
1209 * or if the "stat()" succeeds, we assume it exists.
1211 pf_dir_path_copy = g_strdup(pf_dir_path);
1212 pf_dir_parent_path = get_dirname(pf_dir_path_copy);
1213 pf_dir_parent_path_len = strlen(pf_dir_parent_path);
1214 if (pf_dir_parent_path_len > 0
1215 && pf_dir_parent_path[pf_dir_parent_path_len - 1] != ':'
1216 && ws_stat(pf_dir_parent_path, &s_buf) != 0) {
1218 * No, it doesn't exist - make it first.
1220 ret = ws_mkdir(pf_dir_parent_path, 0755);
1222 *pf_dir_path_return = pf_dir_parent_path;
1226 g_free(pf_dir_path_copy);
1227 ret = ws_mkdir(pf_dir_path, 0755);
1229 ret = ws_mkdir(pf_dir_path, 0755);
1233 * Something with that pathname exists; if it's not
1234 * a directory, we'll get an error if we try to put
1235 * something in it, so we don't fail here, we wait
1236 * for that attempt fo fail.
1241 *pf_dir_path_return = g_strdup(pf_dir_path);
1246 create_persconffile_dir(char **pf_dir_path_return)
1248 return create_persconffile_profile(persconfprofile, pf_dir_path_return);
1251 #if ! GLIB_CHECK_VERSION(2,14,0)
1253 hash_table_get_keys(gpointer key, gpointer value _U_, gpointer user_data)
1255 GList **files = ((GList **)user_data);
1256 *files = g_list_append (*files, key);
1261 copy_persconffile_profile(const char *toname, const char *fromname, char **pf_filename_return,
1262 char **pf_to_dir_path_return, char **pf_from_dir_path_return)
1264 gchar *from_dir = g_strdup (get_persconffile_dir(fromname));
1265 gchar *to_dir = g_strdup (get_persconffile_dir(toname));
1266 gchar *filename, *from_file, *to_file;
1267 GList *files, *file;
1269 #if GLIB_CHECK_VERSION(2,14,0)
1270 files = g_hash_table_get_keys(profile_files);
1273 g_hash_table_foreach(profile_files, hash_table_get_keys, &files);
1276 file = g_list_first(files);
1278 filename = (gchar *)file->data;
1279 from_file = g_strdup_printf ("%s%s%s", from_dir, G_DIR_SEPARATOR_S, filename);
1280 to_file = g_strdup_printf ("%s%s%s", to_dir, G_DIR_SEPARATOR_S, filename);
1282 if (file_exists(from_file) && !copy_file_binary_mode(from_file, to_file)) {
1283 *pf_filename_return = g_strdup(filename);
1284 *pf_to_dir_path_return = to_dir;
1285 *pf_from_dir_path_return = from_dir;
1294 file = g_list_next(file);
1297 g_list_free (files);
1305 * Get the (default) directory in which personal data is stored.
1307 * On Win32, this is the "My Documents" folder in the personal profile,
1308 * except that, if we're running from a U3 device, this is the
1309 * "$U3_DEVICE_DOCUMENT_PATH\My Captures" folder.
1310 * On UNIX this is simply the current directory.
1312 /* XXX - should this and the get_home_dir() be merged? */
1314 get_persdatafile_dir(void)
1317 char *u3devicedocumentpath;
1318 TCHAR tszPath[MAX_PATH];
1322 /* Return the cached value, if available */
1323 if (persdatafile_dir != NULL)
1324 return persdatafile_dir;
1327 * See if we are running in a U3 environment.
1329 u3devicedocumentpath = getenv_utf8("U3_DEVICE_DOCUMENT_PATH");
1331 if (u3devicedocumentpath != NULL) {
1332 /* the "My Captures" sub-directory is created (if it doesn't
1333 exist) by u3util.exe when the U3 Wireshark is first run */
1335 szPath = g_strdup_printf("%s%s", u3devicedocumentpath, U3_MY_CAPTURES);
1337 persdatafile_dir = szPath;
1341 * Hint: SHGetFolderPath is not available on MSVC 6 - without
1344 bRet = SHGetSpecialFolderPath(NULL, tszPath, CSIDL_PERSONAL,
1347 szPath = utf_16to8(tszPath);
1348 persdatafile_dir = szPath;
1361 * Returns the user's home directory on Win32.
1366 static const char *home = NULL;
1367 char *homedrive, *homepath;
1371 /* Return the cached value, if available */
1376 * XXX - should we use USERPROFILE anywhere in this process?
1377 * Is there a chance that it might be set but one or more of
1378 * HOMEDRIVE or HOMEPATH isn't set?
1380 homedrive = getenv_utf8("HOMEDRIVE");
1381 if (homedrive != NULL) {
1382 homepath = getenv_utf8("HOMEPATH");
1383 if (homepath != NULL) {
1385 * This is cached, so we don't need to worry about
1386 * allocating multiple ones of them.
1388 homestring = g_strdup_printf("%s%s", homedrive, homepath);
1391 * Trim off any trailing slash or backslash.
1393 lastsep = find_last_pathname_separator(homestring);
1394 if (lastsep != NULL && *(lastsep + 1) == '\0') {
1396 * Last separator is the last character
1397 * in the string. Nuke it.
1406 * Give up and use C:.
1416 * Construct the path name of a personal configuration file, given the
1419 * On Win32, if "for_writing" is FALSE, we check whether the file exists
1420 * and, if not, construct a path name relative to the ".wireshark"
1421 * subdirectory of the user's home directory, and check whether that
1422 * exists; if it does, we return that, so that configuration files
1423 * from earlier versions can be read.
1425 * The returned file name was g_malloc()'d so it must be g_free()d when the
1426 * caller is done with it.
1429 get_persconffile_path(const char *filename, gboolean from_profile, gboolean for_writing
1440 if (do_store_persconffiles && from_profile && !g_hash_table_lookup (profile_files, filename)) {
1441 /* Store filenames so we know which filenames belongs to a configuration profile */
1442 g_hash_table_insert (profile_files, g_strdup(filename), g_strdup(filename));
1446 path = g_strdup_printf("%s" G_DIR_SEPARATOR_S "%s",
1447 get_persconffile_dir(persconfprofile), filename);
1449 path = g_strdup_printf("%s" G_DIR_SEPARATOR_S "%s",
1450 get_persconffile_dir(NULL), filename);
1454 if (ws_stat(path, &s_buf) != 0 && errno == ENOENT) {
1456 * OK, it's not in the personal configuration file
1457 * directory; is it in the ".wireshark" subdirectory
1458 * of their home directory?
1460 old_path = g_strdup_printf(
1461 "%s" G_DIR_SEPARATOR_S ".wireshark" G_DIR_SEPARATOR_S "%s",
1462 get_home_dir(), filename);
1463 if (ws_stat(old_path, &s_buf) == 0) {
1465 * OK, it exists; return it instead.
1478 * process command line option belonging to the filesystem settings
1479 * (move this e.g. to main.c and have set_persconffile_dir() instead in this file?)
1482 filesystem_opt(int opt _U_, const char *optstr)
1486 colonp = strchr(optstr, ':');
1487 if (colonp == NULL) {
1495 * Skip over any white space (there probably won't be any, but
1496 * as we allow it in the preferences file, we might as well
1499 while (isspace((guchar)*p))
1503 * Put the colon back, so if our caller uses, in an
1504 * error message, the string they passed us, the message
1511 /* directory should be existing */
1512 /* XXX - is this a requirement? */
1513 if(test_for_directory(p) != EISDIR) {
1515 * Put the colon back, so if our caller uses, in an
1516 * error message, the string they passed us, the message
1523 if (strcmp(optstr,"persconf") == 0) {
1524 persconffile_dir = p;
1525 } else if (strcmp(optstr,"persdata") == 0) {
1526 persdatafile_dir = p;
1527 /* XXX - might need to add the temp file path */
1531 *colonp = ':'; /* put the colon back */
1536 * Construct the path name of a global configuration file, given the
1539 * The returned file name was g_malloc()'d so it must be g_free()d when the
1540 * caller is done with it.
1543 get_datafile_path(const char *filename)
1546 return g_strdup_printf("%s" G_DIR_SEPARATOR_S "%s", get_datafile_dir(),
1550 /* Get the personal plugin dir */
1551 /* Return value is malloced so the caller should g_free() it. */
1553 get_plugins_pers_dir(void)
1555 return get_persconffile_path(PLUGINS_DIR_NAME, FALSE, FALSE);
1560 deletefile(const char *path)
1562 return ws_unlink(path) == 0;
1566 * Construct and return the path name of a file in the
1567 * appropriate temporary file directory.
1569 char *get_tempfile_path(const char *filename)
1571 return g_strdup_printf("%s" G_DIR_SEPARATOR_S "%s", g_get_tmp_dir(), filename);
1575 * Return an error message for UNIX-style errno indications on open or
1576 * create operations.
1579 file_open_error_message(int err, gboolean for_writing)
1582 static char errmsg_errno[1024+1];
1588 errmsg = "The path to the file \"%s\" doesn't exist.";
1590 errmsg = "The file \"%s\" doesn't exist.";
1595 errmsg = "You don't have permission to create or write to the file \"%s\".";
1597 errmsg = "You don't have permission to read the file \"%s\".";
1601 errmsg = "\"%s\" is a directory (folder), not a file.";
1605 errmsg = "The file \"%s\" could not be created because there is no space left on the file system.";
1610 errmsg = "The file \"%s\" could not be created because you are too close to, or over, your disk quota.";
1615 errmsg = "The file \"%s\" could not be created because an invalid filename was specified.";
1619 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1620 "The file \"%%s\" could not be %s: %s.",
1621 for_writing ? "created" : "opened",
1623 errmsg = errmsg_errno;
1630 * Return an error message for UNIX-style errno indications on write
1634 file_write_error_message(int err)
1637 static char errmsg_errno[1024+1];
1642 errmsg = "The file \"%s\" could not be saved because there is no space left on the file system.";
1647 errmsg = "The file \"%s\" could not be saved because you are too close to, or over, your disk quota.";
1651 case WTAP_ERR_SHORT_WRITE:
1652 errmsg = "A full write couldn't be done to the file \"%s\".";
1656 g_snprintf(errmsg_errno, sizeof(errmsg_errno),
1657 "An error occurred while writing to the file \"%%s\": %s.",
1659 errmsg = errmsg_errno;
1667 file_exists(const char *fname)
1669 struct stat file_stat;
1673 * This is a bit tricky on win32. The st_ino field is documented as:
1674 * "The inode, and therefore st_ino, has no meaning in the FAT, ..."
1675 * but it *is* set to zero if stat() returns without an error,
1676 * so this is working, but maybe not quite the way expected. ULFL
1678 file_stat.st_ino = 1; /* this will make things work if an error occured */
1679 ws_stat(fname, &file_stat);
1680 if (file_stat.st_ino == 0) {
1686 if (ws_stat(fname, &file_stat) != 0 && errno == ENOENT) {
1695 * Check that the from file is not the same as to file
1696 * We do it here so we catch all cases ...
1697 * Unfortunately, the file requester gives us an absolute file
1698 * name and the read file name may be relative (if supplied on
1699 * the command line), so we can't just compare paths. From Joerg Mayer.
1702 files_identical(const char *fname1, const char *fname2)
1704 /* Two different implementations, because:
1706 * - _fullpath is not available on UN*X, so we can't get full
1707 * paths and compare them (which wouldn't work with hard links
1710 * - st_ino isn't filled in with a meaningful value on Windows.
1713 char full1[MAX_PATH], full2[MAX_PATH];
1716 * Get the absolute full paths of the file and compare them.
1717 * That won't work if you have hard links, but those aren't
1718 * much used on Windows, even though NTFS supports them.
1720 * XXX - will _fullpath work with UNC?
1722 if( _fullpath( full1, fname1, MAX_PATH ) == NULL ) {
1726 if( _fullpath( full2, fname2, MAX_PATH ) == NULL ) {
1730 if(strcmp(full1, full2) == 0) {
1736 struct stat filestat1, filestat2;
1739 * Compare st_dev and st_ino.
1741 if (ws_stat(fname1, &filestat1) == -1)
1742 return FALSE; /* can't get info about the first file */
1743 if (ws_stat(fname2, &filestat2) == -1)
1744 return FALSE; /* can't get info about the second file */
1745 return (filestat1.st_dev == filestat2.st_dev &&
1746 filestat1.st_ino == filestat2.st_ino);
1751 * Copy a file in binary mode, for those operating systems that care about
1752 * such things. This should be OK for all files, even text files, as
1753 * we'll copy the raw bytes, and we don't look at the bytes as we copy
1756 * Returns TRUE on success, FALSE on failure. If a failure, it also
1757 * displays a simple dialog window with the error message.
1760 copy_file_binary_mode(const char *from_filename, const char *to_filename)
1762 int from_fd, to_fd, nread, nwritten, err;
1765 /* Copy the raw bytes of the file. */
1766 from_fd = ws_open(from_filename, O_RDONLY | O_BINARY, 0000 /* no creation so don't matter */);
1768 report_open_failure(from_filename, errno, FALSE);
1772 /* Use open() instead of creat() so that we can pass the O_BINARY
1773 flag, which is relevant on Win32; it appears that "creat()"
1774 may open the file in text mode, not binary mode, but we want
1775 to copy the raw bytes of the file, so we need the output file
1776 to be open in binary mode. */
1777 to_fd = ws_open(to_filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0644);
1779 report_open_failure(to_filename, errno, TRUE);
1784 while ((nread = ws_read(from_fd, pd, sizeof pd)) > 0) {
1785 nwritten = ws_write(to_fd, pd, nread);
1786 if (nwritten < nread) {
1790 err = WTAP_ERR_SHORT_WRITE;
1791 report_write_failure(to_filename, err);
1799 report_read_failure(from_filename, err);
1805 if (ws_close(to_fd) < 0) {
1806 report_write_failure(to_filename, errno);
1822 * indent-tabs-mode: t
1825 * ex: set shiftwidth=4 tabstop=4 noexpandtab
1826 * :indentSize=4:tabSize=4:noTabs=false: